* {
    padding: 0;
    margin: 0;
}

.all {
    width: 100%;
    background: #cdeef7;
    overflow: hidden;

    img {
        width: 100%;
        display: block;
        margin: 0 auto;
        border: 0;
        overflow-clip-margin: content-box;
        overflow: clip;
    }
}

.tool {
    .tooBar {
        position: fixed;
        right: 0;
        bottom: 36px;
        z-index: 9999;

        a {
            display: block;
            width: 52px;
            height: 52px;
            margin-top: 1px;
            position: relative;
            background-position: 0 -674px !important;
            transition: background-position 1s;
            background: url(https://pic.motieimg.com/web-feature/dist/static/img/toolbar.21a529f.png)no-repeat;
            text-decoration: none;
        }

    }

    a:hover {
        background-position: 0 -736px !important;
    }
}